He shouldn't lose his job (6)
I believe the answer is:
keeper
This could be a double definition.
'he shouldn't lose' is the first definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'job' is the second definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's a link between them I don't understand?
'his' is the link.
Can you help me to learn more?
(Other definitions for keeper that I've seen before include "Zoo or park manager" , "Custodian, steward" , "Goal minder" , "penalties will come my way" , "Zoo official" .)